Well, I cannot see the video. But I had a miss on mine until I got better voltage to my electronic ignition. I now power it off a relay that is powered by the ignition switch. Way better now, no missing.

Fred Camper wrote:Well, I cannot see the video. But I had a miss on mine until I got better voltage to my electronic ignition. I now power it off a relay that is powered by the ignition switch. Way better now, no missing.

Huh... The video was set to private for some reason... You should be able to see it now.

Start the bike from cold....let it idle for 10 seconds....shut it off....LIGHTLY tap each header....each one should be equally warm....I'll bet a nickel that one cylinder on one side is cold.....
Fuel,spark,compression.....One of them isn't right..
Have the carbs been synced?
locate the cylinder that's not firing and swap the spark plug with one that is...re-test....
Check the compression compared to a cylinder that is firing...No more than 5 psi difference...
Keep us posted..